I used to use the Plugin/Extension extensively (2011-2020, till I quit administrating that outdated Vault 2014) and was pleased to know it has a modern alive descendent.
But I seem to have couple issues with Thunderdome 2022.
I don't understand how to distribute the Extensions/Plugins.
Here is a "Create Deployment" window screenshot from video about Project Thunderdome 2013:

Here is an ?equivalent? "Manage Deployment" screenshot from Thunderdome 2022:

No "Plug-ins" node.
What I'm missing?
PS:
Another issue is installing to default folder "C:\ProgramData\Autodesk\Vault 2022\Extensions\Autodesk.ThunderdomeSample\".
If accepted installer puts everything to disk root folder (C:\).
My workaround is to create the target folder manually (I used "C:\ProgramData\Autodesk\Vault 2022\Extensions\ThunderdomeSample\") and set it with Browse.